Rule 613 Prior statements of witnesses. (a) Examining witness concerning prior statement. In examining a witness concerning a prior statement made by the witness, whether written or not, the statement need not be shown nor its contents disclosed to the witness at that time, but on request the same shall be shown or disclosed to opposing counsel.
(b) Extrinsic evidence of prior inconsistent statement of witness. Extrinsic evidence of a prior inconsistent statement by a witness is not admissible unless, on direct or cross-examination, (1) the circumstances of the statement have been brought to the attention of the witness, and (2) the witness has been asked whether the witness made the statement.
(c) Prior consistent statement of witness. Evidence of a statement previously made by a witness that is consistent with the witness' testimony at the trial is admissible to support the witness' credibility only if it is offered after:
(1) Evidence of the witness' prior inconsistent statement has been admitted for the purpose of attacking the witness' credibility, and the consistent statement was made before the inconsistent statement; or
(2) An express or implied charge has been made that the witness' testimony at the trial is recently fabricated or is influenced by bias or other improper motive, and the consistent statement was made before the bias, motive for fabrication, or other improper motive is alleged to have arisen; or
(3) The witness' credibility has been attacked at the trial by imputation of inaccurate memory, and the consistent statement was made when the event was recent and the witness' memory fresh. [L 1980, c 164, pt of §1; gen ch 1985]